If your doctor tests your urine and finds too many leukocytes, it could be a sign of infection. Leukocytes are white blood cells created in the bone marrow and found in your blood and tissue. They are ...

High protein levels in urine (proteinuria) can mean your kidneys are not filtering blood properly. It may also be temporary from dehydration, intense exercise, or an unbalanced diet. Early kidney ...

Foamy urine may indicate protein in your urine, which could suggest a kidney complication. Conditions like diabetes, high blood pressure, and lupus may also cause proteins to appear in your urine. You ...